So... if I know the starting pH (and TA and CYA), what is the formula for calculating the target pH given a particular amount of Borax?

Quote Originally Posted by chem geek View Post

The amount of pH rise that Borax causes is dependent on the starting pH and the TA level (and CYA level). 10 pounds of Borax in your 30,000 gallon pool will raise the pH from 7.0 to 7.29, but if you start with a pH of 7.5 it will raise the pH to 8.14

Richard